Hello - since no pic is posted, not completely sure about your question(s), but let me offer several comments. First, I connected my AKG portable BT headphones to my iPad Pro - in the top pic, the 'headphone' symbol is shown, and next to it is the battery charge for the BT device which is full although a percent is not given; second, the 70% indicates the battery charge of my iPad w/ its symbol on the far right.
Take a look
HERE where the 'status symbols' are listed - the second pic below provides an explanation for the same icons - hope this explains your inquiry? Dave
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